* Refactored PostSet, splitting it into PostSets::Post and PostSets::Favorite

* Additional functional tests

config/danbooru_default_config.rb

@@ -198,6 +198,10 @@ module Danbooru
       !user.is_privileged?
     end
     
+    def is_user_advertiser?(user)
+      user.is_admin?
+    end
+    
     def can_user_see_post?(user, post)
       if is_user_restricted?(user) && is_post_restricted?(post)
         false

config/danbooru_local_config.rb

@@ -31,5 +31,9 @@ module Danbooru
         </script>
       }.html_safe
     end
+    
+    def is_user_advertiser?(user)
+      user.is_admin? || user.name == "ppayne"
+    end
   end
 end